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f23f1516b6
linux/drivers/pinctrl
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Shiraz Hashim f23f1516b6 gpiolib: provide provision to register pin ranges 
pinctrl subsystem needs gpio chip base to prepare set of gpio
pin ranges, which a given pinctrl driver can handle. This is
important to handle pinctrl gpio request calls in order to
program a given pin properly for gpio operation.

As gpio base is allocated dynamically during gpiochip
registration, presently there exists no clean way to pass this
information to the pinctrl subsystem.

After few discussions from [1], it was concluded that may be
gpio controller reporting the pin range it supports, is a
better way than pinctrl subsystem directly registering it.

[1] http://comments.gmane.org/gmane.linux.ports.arm.kernel/184816

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
[Edited documentation a bit]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-11 19:06:00 +01:00
..
mvebu pinctrl: mvebu: move to its own directory 2012-11-11 19:05:57 +01:00
spear pinctrl: SPEAr1340: Add clcd sleep mode pin configuration 2012-11-05 12:34:32 +01:00
core.c gpiolib: provide provision to register pin ranges 2012-11-11 19:06:00 +01:00
core.h pinctrl: reserve pins when states are activated 2012-11-11 19:05:56 +01:00
devicetree.c gpiolib: provide provision to register pin ranges 2012-11-11 19:06:00 +01:00
devicetree.h pinctrl: core device tree mapping table parsing support 2012-04-18 13:53:10 +02:00
Kconfig pinctrl: sirf: enable the driver support new SiRFmarco SoC 2012-11-11 19:05:58 +01:00
Makefile pinctrl: mvebu: move to its own directory 2012-11-11 19:05:57 +01:00
pinconf-generic.c pinctrl: introduce generic pin config 2012-03-12 22:49:02 +01:00
pinconf.c pinctrl: remove mutex lock in groups show 2012-10-18 20:27:31 +02:00
pinconf.h pinctrl: pinconf: fix compilation error if PINCONF is not selected 2012-04-18 13:53:12 +02:00
pinctrl-bcm2835.c pinctrl: fix return value in bcm2835_pinctrl_probe() 2012-10-15 09:09:27 +02:00
pinctrl-coh901.c pinctrl/coh901: move header to platform data dir 2012-08-13 13:53:05 +02:00
pinctrl-coh901.h pinctrl: support pinconfig on the U300 2012-03-12 22:49:03 +01:00
pinctrl-exynos.c pinctrl: exynos: Add terminating entry for of_device_id table 2012-11-11 19:05:59 +01:00
pinctrl-exynos.h pinctrl: exynos: Set pin function to EINT in irq_set_type of GPIO EINTa 2012-09-21 07:33:48 +09:00
pinctrl-falcon.c OF: pinctrl: MIPS: lantiq: adds support for FALCON SoC 2012-09-13 10:30:58 +02:00
pinctrl-imx6q.c pinctrl: pinctrl-imx6q: add missed mux function for USBOTG_ID 2012-07-14 22:32:10 +02:00
pinctrl-imx23.c pinctrl: mxs: register driver at postcore_initcall time 2012-08-05 00:24:15 +02:00
pinctrl-imx28.c pinctrl: mxs: register driver at postcore_initcall time 2012-08-05 00:24:15 +02:00
pinctrl-imx35.c pinctrl: pinctrl-imx: add imx35 pinctrl driver 2012-09-03 13:21:37 +02:00
pinctrl-imx51.c pinctrl: imx5: start numbering pad from 0 2012-09-03 13:21:37 +02:00
pinctrl-imx53.c pinctrl: imx5: start numbering pad from 0 2012-09-03 13:21:37 +02:00
pinctrl-imx.c pinctrl: imx: remove duplicated const 2012-09-18 15:19:13 +02:00
pinctrl-imx.h pinctrl: pinctrl-imx: add imx pinctrl core driver 2012-05-02 01:14:40 +02:00
pinctrl-lantiq.c OF: pinctrl: MIPS: lantiq: implement lantiq/xway pinctrl support 2012-09-13 10:30:49 +02:00
pinctrl-lantiq.h OF: pinctrl: MIPS: lantiq: implement lantiq/xway pinctrl support 2012-09-13 10:30:49 +02:00
pinctrl-mmp2.c pinctrl: enable pinmux for mmp series 2012-02-01 19:42:35 +01:00
pinctrl-mxs.c pinctrl: mxs: Use kfree to fix build error 2012-06-17 19:44:44 +02:00
pinctrl-mxs.h pinctrl: add pinctrl-mxs support 2012-05-02 01:18:27 +02:00
pinctrl-nomadik-db8500.c pinctrl/nomadik: support other alternate-C functions 2012-10-10 08:36:59 +02:00
pinctrl-nomadik-db8540.c pinctrl/nomadik: support other alternate-C functions 2012-10-10 08:36:59 +02:00
pinctrl-nomadik-stn8815.c pinctrl/nomadik: add STn8815 ASIC support 2012-09-03 13:21:37 +02:00
pinctrl-nomadik.c pinctrl/nomadik: pass DT node to the irqdomain 2012-10-23 11:52:25 +02:00
pinctrl-nomadik.h pinctrl/nomadik: support other alternate-C functions 2012-10-10 08:36:59 +02:00
pinctrl-pxa3xx.c pinctrl: pinctrl-pxa3xx: remove empty pinmux disable function 2012-05-15 09:59:50 +02:00
pinctrl-pxa3xx.h pinctrl: enable pinmux for mmp series 2012-02-01 19:42:35 +01:00
pinctrl-pxa168.c pinctrl: enable pinmux for mmp series 2012-02-01 19:42:35 +01:00
pinctrl-pxa910.c pinctrl: enable pinmux for mmp series 2012-02-01 19:42:35 +01:00
pinctrl-samsung.c pinctrl: samsung: use __devinit section for init code 2012-10-15 09:09:27 +02:00
pinctrl-samsung.h pinctrl: add samsung pinctrl and gpiolib driver 2012-09-07 06:07:19 +09:00
pinctrl-single.c pinctrl: pinctrl-single: add debugfs pin h/w state info 2012-09-28 09:12:53 +02:00
pinctrl-sirf.c pinctrl: sirf: enable the driver support new SiRFmarco SoC 2012-11-11 19:05:58 +01:00
pinctrl-tegra20.c pinctrl: tegra: refactor probe handling 2012-04-18 10:26:40 -06:00
pinctrl-tegra30.c pinctrl: tegra: correct bank for pingroup and drv pingroup 2012-10-17 19:49:28 +02:00
pinctrl-tegra.c pinctrl: tegra: set low power mode bank width to 2 2012-10-17 19:47:06 +02:00
pinctrl-tegra.h pinctrl: tegra: move pinconf-tegra.h content into drivers/pinctrl 2012-09-14 11:35:37 -06:00
pinctrl-u300.c pinctrl/pinctrl-u300: remove unneeded devm_kfree call 2012-08-05 00:24:15 +02:00
pinctrl-xway.c pinctrl: remove duplicated include from pinctrl-xway.c 2012-10-15 09:09:27 +02:00
pinmux.c pinctrl: reserve pins when states are activated 2012-11-11 19:05:56 +01:00
pinmux.h pinctrl: ifdef CONFIG_DEBUG_FS cleanup 2012-04-18 13:53:12 +02:00